Our first ‘desktop’ computer didn’t have any long term data storage – it just had 32kB of RAM and relied on external software storage!
Advances in computer technology make me feel old. My first work computer, was an EMIDEC 1100. Main memory was 1024 x 36bit words of core (approx 4kb), plus a 20k magnetic drum. Lived in it’s own building and was “too expensive for most countries”. Strangely I don’t remember any tape drives. Might be because I spent most of my time inside its “database” – 300,000 punched cards in a hut!
A month later I transferred to a new ICL1906A installation. This was water-cooled ‘big iron’ in a purpose built building, with computer hall, tape library, offices for about 100 staff, kitchen, bogs and all the trimmings. Had it’s own substation with four big motor generators and a huge diesel standby generator in a shed bigger than my house. Left the EMIDEC completely in the dust: 196,000 24bit words, 2 line printers, about 10 tape drives, half a dozen 60Mb drives, each the size of a laundrette washing machine. Replacing EDS60s with 200Mb drives was a 9 day wonder – visitors were bussed in to admire them.
Peripherals cost about as much as a house, and printer paper arrived by the ton. Only 6 “visual display units” so most programs were hand punched on cards. Took about 10 minutes to process 100,000 records and was operated on a shift system. Later computers soon made it obsolete. Vic’s phone is more powerful than a 1980’s corporate mainframe, children can afford them, and they do all things informational!
The 1906A saved an enormous amount of money by implementing a stock control/management system. Humans couldn’t do the calculations fast enough. Statistical provisioning involves exponential smoothing applied in 4 or 5 different ways, and accuracy is greatly improved if all the data is available – recurring demand, shelf-life, obsolescence, and dependencies etc. Lots of awkward sums, too much for nomographs and mechanical calculators. A computer has no problem assembling all the data and crunching the numbers, and fewer staff are needed.
Stock control also reduces wastage – men went to gaol because I was able to identify when and where stock was going missing, allowing the police to sharply focus their enquiries. The thieves never knew they’d been nailed by a bloke in an office analysing data. Since then I’ve been very wary of sharing personal data on the web. What I did in the 80’s was basic by modern standards.
A later development was ‘Just In Time’ provisioning, in which fast computers reduce the need for warehouses and warehousemen. Rather than pay for storage purchases are timed so stock is only delivered when needed.
Forty years later these techniques, and more, are part of the basic package when industry set up new factories abroad. National pride and racist notions are rendered irrelevant because it’s not necessary for the workforce to be highly skilled. These days manufacturing has to continually modernise and innovate as necessary to deliver desirable and affordable products. Anything less is commercial suicide…
Dave